Two engineering design projects, practical operation and the calculation method of transformer capacity and start voltage were introduced.
文中介绍了两个工程设计、运行的应用实例，以及变压器容量及起动电压水平的计算方法。
The ventilators cool down the radiators. In summer the noise is terrible. Right now there is no voltage here, works will start in autumn.
排气风扇冷却散热器，在夏天，噪音是可怕的，现在这里没有电压，工程将于秋天开始。
If the voltage is removed for more than 90 msec, the electronic will start to sink current 10 msec after the application of voltage as usual.
如果电压移除大于90毫秒﹐电子负载会照例在输入电压后10毫秒才拉电流。
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